License

LOINC®

This product includes content from LOINC® (http://loinc.org). LOINC is copyright © 1995–2025, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license. LOINC® is a registered United States trademark of Regenstrief Institute, Inc.

UCUM

This product includes UCUM (the Unified Code for Units of Measure). Copyright © 1999–2024 Regenstrief Institute, Inc. All rights reserved. UCUM is used under the UCUM License, Version 1.1, available at https://ucum.org/license; the UCUM table, codes, and definitions are provided on an "AS IS" basis, without warranties or conditions of any kind.

UCUM-LHC (NLM / LHNCBC)

Unit validation uses UCUM-LHC. Owner Notice: this software (including any associated website-service or downloadable source (code)) was developed by the Lister Hill National Center for Biomedical Communications (LHNCBC), a research and development division of the U.S. National Library of Medicine (NLM), with the permission and based on the copyrighted content of the Regenstrief Institute. Redistribution and use in source and binary forms, with or without modification, are permitted for commercial and non-commercial purposes and products alike, provided that redistributions retain and prominently display this Owner Notice, the list of conditions, and the disclaimer. Neither the names of the National Library of Medicine (NLM), the Lister Hill National Center for Biomedical Communications (LHNCBC), the National Institutes of Health (NIH), nor the names of any of the software contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE OWNER AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. THE UCUM TABLE (IN ALL FORMATS), UCUM DEFINITIONS, AND SPECIFICATION ARE PROVIDED "AS IS." The full license is at https://github.com/lhncbc/ucum-lhc/blob/master/LICENSE.md.

SNOMED CT®

This product includes SNOMED Clinical Terms® (SNOMED CT®) which is used by permission of SNOMED International. All rights reserved. SNOMED CT® was originally created by the College of American Pathologists. SNOMED CT is a registered trademark of SNOMED International. SNOMED CT content is provided for reference only and is used under a validated UMLS Metathesaurus License.

RxNorm

This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.

HL7® v2 Specification Data

HL7 v2 specification content is from the HL7 Version 2.x (All Versions) Access Database, published by Health Level Seven International. Database content is copyright © Health Level Seven International and is used under the Creative Commons Attribution 4.0 International license (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); the database software components are licensed under the Apache License, Version 2.0. Changes were made: the specification content has been extracted, restructured, reformatted, and indexed for presentation in this application, and is not a verbatim reproduction of the source database or of the official HL7 standards publications.

HL7® v3 / CDA® / RIM Specification Data

HL7 v3 content — including the HL7 Version 3 Normative Edition, the Reference Information Model (RIM), and Clinical Document Architecture (CDA) Release 2 — is copyright © Health Level Seven International. This content is used in accordance with HL7’s intellectual property policy; it remains the property of Health Level Seven International and is not covered by the Creative Commons Attribution 4.0 grant that applies to the HL7 v2 Access Database (the CC BY 4.0 grant is v2-only). The specification content has been extracted, restructured, reformatted, and indexed for presentation in this application, and is not a verbatim reproduction of the official HL7 standards publications.

OMOP Vocabularies

Additional clinical vocabularies are sourced from the OMOP Common Data Model vocabulary bundle distributed via Athena (athena.ohdsi.org).